21520654

素因数分解:

$2^1\times {\mathrm{19}}^2\times {\mathrm{41}}^1\times {\mathrm{727}}^1$

素因数の和:808

約数の個数: 24

約数和(自身を含む): 34948368

約数和(自身を除く): 13427714

約数列:

[1, 2, 19, 38, 41, 82, 361, 722, 727, 779, 1454, 1558, 13813, 14801, 27626, 29602, 29807, 59614, 262447, 524894, 566333, 1132666, 10760327, 21520654]

約数ペア:

[(1, 21520654), (2, 10760327), (19, 1132666), (38, 566333), (41, 524894), (82, 262447), (361, 59614), (722, 29807), (727, 29602), (779, 27626), (1454, 14801), (1558, 13813)]